gas mileage

  1. johnhibbs

    Mercury 240EFI hard starting warm and gas mileage

    I had a hard time restarting my Challenger 2000 with a Mercury 240EFI engine when it was warm. After reading that other people had solved the problem by replacing the temp sensor on the engine (passenger side) I gave it a try and it fixed the problem. Short story: The insulation on the...